This article in the light df the main wear type of high speed steel tool and common hard alloy tool, design 'es a new kind wear resistance coating.
本文针对高速钢刀具和普通硬质合金刀具的主要磨损形式，设计了一种新型的刀具耐磨涂料。
Multilayer light gauge steel structure residence is a new type of residence system of green and environmental protection.
多层轻钢结构住宅是一种绿色环保的新型住宅体系。
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